Ghosts

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Will Storr Versus the Supernatural

This House Is Haunted

UFOs

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The Stargate Chronicles

Secrets of the Mysterious Valley

Anatomy of a Phenomenon: Unidentified Objects in Space--A Scientific Appraisal.

The Kelly Incident

UFO Casebook

Cryptozoology

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Still Living? Yeti, Sasquatch, and the Neanderthal enigma

Mysterious America

Tom Slick: True Life Encounters in Cryptozoology

Bigfoot! : The True Story of Apes in America

Field Guide to Lake Monsters, Sea Serpents, and Other Mystery Denizens of the Deep

Unexplained

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PopLit, PopCult and The X-Files: A Critical Exploration

Unexplained: Strange Sightings, Incredible Occurrences & Puzzling Physical Phenomena

Reunion with source: Prophecies and understandings concerning the past and future of humanity and the earth

Handbook of the Birds of the World. Volume 5: Barn Owls to Hummingbirds

Captain of My Ship, Master of My Soul: Living With Guidance